Arugula and Pear Salad with Toasted Walnuts

Ingredients

• 1 tbsp minced shallots
• 2 tbsp extra-virgin olive oil
• 2 tsp white wine vinegar
• 1/4 tsp salt
• 1/4 tsp Dijon mustard
• 1/8 tsp freshly ground black pepper
• 6 cups baby arugula leaves
• 2 Bosc pears, thinly sliced
• 1/4 cup chopped walnuts, toasted